DirectoryDialogButtonListenerFactory.java

/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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package org.pentaho.di.ui.trans.steps.fileinput.text;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class DirectoryDialogButtonListenerFactory {
  public static final SelectionAdapter getSelectionAdapter( final Shell shell, final Text destination ) {
    // Listen to the Browse... button
    return new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        DirectoryDialog dialog = new DirectoryDialog( shell, SWT.OPEN );
        if ( destination.getText() != null ) {
          String fpath = destination.getText();
          // String fpath = StringUtil.environmentSubstitute(destination.getText());
          dialog.setFilterPath( fpath );
        }

        if ( dialog.open() != null ) {
          String str = dialog.getFilterPath();
          destination.setText( str );
        }
      }
    };
  }
}